var basicBtn=$("#basicBtn")[0]
var passwordBtn=$("#passwordBtn")[0]
var emailBtn=$("#emailBtn")[0]

var basic=$("#basic")[0]
var changePW=$("#changePW")[0]
var changeEmail=$("#changeEmail")[0]

function fnBasic(){
    basic.style.display="block";
    changePW.style.display="none";
    changeEmail.style.display="none";
}
function fnPassword(){
    basic.style.display="none";
    changePW.style.display="block";
    changeEmail.style.display="none";
}
function fnEmail(){
    basic.style.display="none";
    changePW.style.display="none";
    changeEmail.style.display="block";
}

window.onload=function(){
    basicBtn.onclick=fnBasic;
    passwordBtn.onclick=fnPassword;
    emailBtn.onclick=fnEmail;
}